CDO

Hi,
Dear Schulzweida adn CDO user,
I am working on the RegCM RCM output files (ATM,SRF,RAD) using the Postproc tools.
I successfully regrid the SRF and RAD files using the regrid.sh script, but unable to regrid the ATM file (which contain different pressure levels).
While using the regrid.sh script on ATM file, I have the following error.
cdo remapbil (Abort): Unsupported grid type: generic
Although I saw some problems related to this issue on this forum but didn't found any solution, as in my case all files (SRF,RAD,ATM) have same curvilinear and generic type, but the problem is only with the ATM file.
Any assistance would be highly appreciated.
Thanks in advance

Best Regards